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Cheap flights from Sofia to Istanbul Airport from £59

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/11. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — IST
28 Nov — 5 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Sofia to Istanbul

Enter your travel dates to find the best prices.

Cheapest flights from Sofia to Istanbul
Explore the most affordable flight options available from Sofia to Istanbul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 October 2025.

Sat 6/1206:00SOF - IST
1 stop14h 05mMultiple Airlines
Tue 9/1220:30IST - SOF
Nonstop1h 20mMultiple Airlines
Deal found 28/10£102
Sat 6/1209:35SOF - IST
Nonstop1h 30mTurkish Airlines
Tue 9/1220:30IST - SOF
Nonstop1h 20mTurkish Airlines
Deal found 28/10£104
Fri 12/1216:00SOF - IST
Nonstop1h 30mTurkish Airlines
Fri 19/1208:30IST - SOF
Nonstop1h 15mTurkish Airlines
Deal found 28/10£107
Thu 11/1209:35SOF - IST
Nonstop1h 30mTurkish Airlines
Thu 18/1208:30IST - SOF
Nonstop1h 15mTurkish Airlines
Deal found 27/10£107
Fri 12/1209:35SOF - IST
Nonstop1h 30mTurkish Airlines
Tue 16/1220:30IST - SOF
Nonstop1h 20mTurkish Airlines
Deal found 27/10£108
Thu 27/1112:10SOF - IST
1 stop5h 20mMultiple Airlines
Thu 4/1208:30IST - SOF
Nonstop1h 15mMultiple Airlines
Deal found 28/10£110
Fri 7/1116:00SOF - IST
Nonstop1h 30mTurkish Airlines
Tue 11/1120:30IST - SOF
Nonstop1h 20mTurkish Airlines
Deal found 27/10£111
Thu 11/1206:00SOF - IST
1 stop14h 05mMultiple Airlines
Thu 18/1208:30IST - SOF
Nonstop1h 15mMultiple Airlines
Deal found 27/10£125
Mon 24/1121:40SOF - IST
Nonstop1h 35mMultiple Airlines
Mon 1/1222:00IST - SOF
1 stop16h 30mMultiple Airlines
Deal found 27/10£125

Cheap flight deals from Sofia to Istanbul

Discover tips and strategies to find the most affordable flight options for your journey from Sofia (SOF) to Istanbul (IST). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 October 2025.

Round-trip from

£102

One-way from

£59

Popular in

November

Cheapest in

March

Average price

£87

Good round-trip deal

£690 or less
Turkish Airlines
  • Turkish Airlines
  • 6/12-9/12
  • 1 total stop
  • 15h 25m total
  • Sofia to Istanbul
Search Deals
27/11
  • 27/11
  • 1 total stop
  • 5h 20m total
  • Sofia to Istanbul
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£7 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Sofia to Istanbul.
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Sofia to Istanbul that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 29 October 2025.
Use the filters below to find and compare flights from Sofia to Istanbul Airport that are best for you.

Fly from

Sofia

Fly to

Istanbul

Route

Depart

Return

Price

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Sat 6/12

09:35-12:05

Nonstop1h 30m

Istanbul

Tue 9/12

20:30-20:50

Nonstop1h 20m

£104

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Fri 12/12

16:00-18:30

Nonstop1h 30m

Istanbul

Fri 19/12

08:30-08:45

Nonstop1h 15m

£107

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Thu 11/12

09:35-12:05

Nonstop1h 30m

Istanbul

Thu 18/12

08:30-08:45

Nonstop1h 15m

£107

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Fri 12/12

09:35-12:05

Nonstop1h 30m

Istanbul

Tue 16/12

20:30-20:50

Nonstop1h 20m

£108

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Wed 4/3

16:00-18:30

Nonstop1h 30m

Istanbul

Tue 24/3

14:50-15:10

Nonstop1h 20m

£108

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Thu 27/11

12:10-18:30

1 stop5h 20m

Istanbul

Thu 4/12

08:30-08:45

Nonstop1h 15m

£110

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Thu 11/12

06:00-21:05

1 stop14h 05m

Istanbul

Thu 18/12

08:30-08:45

Nonstop1h 15m

£125

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Mon 24/11

21:40-00:15

Nonstop1h 35m

Istanbul

Mon 1/12

22:00-13:30

1 stop16h 30m

£125

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Thu 27/11

09:35-12:05

Nonstop1h 30m

Istanbul

Thu 4/12

20:30-20:50

Nonstop1h 20m

£128

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Thu 12/3

10:05-09:30

1 stop22h 25m

Istanbul

Thu 2/4

04:20-15:35

1 stop11h 15m

£138

Flights are sorted by cheapest return flights first.

Deals found on 28/10

Showing 1-10 of 23 results
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Best time to book a flight from Sofia to Istanbul

Have a flexible travel schedule? Discover the best time to fly to Istanbul from Sofia with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sofia to Istanbul Airport

How far ahead should I book a flight from Sofia to Istanbul Airport?

Use this chart to determine the optimal time to book a return flight from Sofia to Istanbul. Price data was last updated on 24 October 2025.

Booking 23 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sofia to Istanbul Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Sofia to Istanbul Airport?

Currently, March is the cheapest month in which you can book a flight from Sofia to Istanbul Airport (average of £60). Flying from Sofia to Istanbul Airport in April is currently the most expensive (average of £75). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SOF to IST?

Find hourly flight availability from Sofia to Istanbul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 October 2025.

It’s typically best to fly out from Sofia to Istanbul Airport at midday. Doing so could potentially save you 86% on the flight price compared to flying in the evening, which is usually more expensive.

How much does it cost for a return flight from Sofia to Istanbul Airport?

Reviews of airlines servicing Istanbul

Get insights into the airlines that provide service to Istanbul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Istanbul. Reviews last updated 29 October 2025.
See what other customers who have flown with Turkish Airlines and Pegasus Airlines from Sofia to Istanbul Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Turkish Airlines
7.3
Good
4,031 reviews
Check prices

Overall

7.3

Comfort

7.3

Entertainment

7.4

Food

7.4

Boarding

7.3

Crew

7.7

Reviews

1 / 20
6.0
Good

Christina,Sept 2025

DTW - IST

Crew was fine but the plane seemed smaller like the seats were very crammed in for an international flight. I’m a small person and it felt suffocating to me.
Turkish Airlines
7.3
Good
4,031 reviews
Turkish Airlines
7.3
Good
4,031 reviews
Check prices

Overall

7.3

Comfort

7.3

Entertainment

7.4

Food

7.4

Boarding

7.3

Crew

7.7

Reviews

1 / 20
6.0
Good

Christina,Sept 2025

DTW - IST

Crew was fine but the plane seemed smaller like the seats were very crammed in for an international flight. I’m a small person and it felt suffocating to me.
Pegasus Airlines
6.7
Okay
634 reviews
Turkish Airlines
7.3
Good
4,031 reviews
Check prices

Overall

7.3

Comfort

7.3

Entertainment

7.4

Food

7.4

Boarding

7.3

Crew

7.7

Reviews

1 / 20
6.0
Good

Christina,Sept 2025

DTW - IST

Crew was fine but the plane seemed smaller like the seats were very crammed in for an international flight. I’m a small person and it felt suffocating to me.

Related info for your journey

Find useful and relevant information for your journey from Sofia to Istanbul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Sofia to Istanbul?

    Sofia (SOF) is the airport you will fly out of if you book a flight from Sofia to Istanbul. You should not have trouble finding flights to Istanbul from Sofia; the airport handles an average of 6 outbound flights to Istanbul per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Sofia airport to Istanbul. It is only a 4.2 mi journey to Sofia (SOF) from Sofia’s city center.

  • How long is the flight from Sofia to Istanbul Airport?

    Turkish Airlines can get you from Sofia to Istanbul Airport in just under 1h 30m. Your travel time will be generally consistent. The distance between Sofia and Istanbul Airport is about 291 mi. Most flights are nonstop.

  • What are the cheapest airlines flying from Sofia to Istanbul Airport round-trip?

    Currently priced at £65, Pegasus Airlines will fly you from Sofia to Istanbul Airport and back. In addition to Pegasus Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Turkish Airlines for as low as £104. You may be able to fly from Sofia to Istanbul Airport for 35% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Sofia to Istanbul Airport one-way?

    £62 is the cheapest one-way deal found within the past few days, from Turkish Airlines. You may also be able to find cheap deals on Sky Express and Air Serbia, with prices starting from £62 and £74, respectively.

  • What are the most reliable airlines from Sofia to Istanbul Airport?

    The top 3 most reliable airlines when flying from Sofia to Istanbul Airport are Turkish Airlines (68%), IndiGo (68%) and Egyptair (66%).

  • What are the cheapest flights from Sofia to Istanbul Airport?

    The cheapest flight price from Sofia to Istanbul Airport is £367. On average you can expect to pay £936. The most popular route, (Sofia - Istanbul), can usually be booked for £97.

  • Can I find deals for flights from Sofia to Istanbul that include hotel bookings?

    Yes. In addition to deals on Sofia to Istanbul flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sofia to Istanbul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sofia to Istanbul.

  • Can I find deals for business class flights from Sofia to Istanbul?

    Yes. Cheapflights offers flight deals from Sofia to Istanbul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sofia to Istanbul Airport?

    Currently, March is the cheapest month in which you can book a flight from Sofia to Istanbul Airport (average of £60). Flying from Sofia to Istanbul Airport in April is currently the most expensive (average of £75). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Istanbul Airport?

Book flights to Istanbul Airport if you plan to visit one of these locations
Yalova

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Top 2 airlines flying from Sofia to Istanbul

Discover the top 2 airlines that operate flights from Sofia to Istanbul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 29 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Pegasus AirlinesCheapest£65Average£80FlexibilityNo cancel feeOn-time82%
Search Pegasus Airlines flights
Turkish AirlinesCheapest£104Average£144FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sofia to Istanbul?

Cheapflights makes it easy to find Sofia to Istanbul flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Sofia to Istanbul?

Cheapflights simply makes it quick and affordable to book flights from Sofia to Istanbul by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Sofia to Istanbul with no change fees?

Yes, we can. To see specific flights from Sofia to Istanbul with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Sofia to Istanbul become cheaper?

Yes, Cheapflights offers price alerts on Sofia to Istanbul flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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